| (19) |
 |
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(11) |
EP 0 699 732 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
10.04.1996 Bulletin 1996/15 |
| (43) |
Date of publication A2: |
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06.03.1996 Bulletin 1996/10 |
| (22) |
Date of filing: 18.08.1995 |
|
| (51) |
International Patent Classification (IPC)6: C10G 45/44 |
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
29.08.1994 JP 203353/94
|
| (71) |
Applicants: |
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- COSMO RESEARCH INSTITUTE
Tokyo (JP)
- COSMO OIL COMPANY, LTD.
Tokyo (JP)
|
|
| (72) |
Inventor: |
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- Shimizu, Toshio,
Cosmo Research Institute
Satte-shi,
Saitama-ken (JP)
|
| (74) |
Representative: Wächtershäuser, Günter, Prof. Dr. |
|
Patentanwalt,
Tal 29
D-80331 München
D-80331 München (DE) |
|
| |
|
| (54) |
Process for hydrogenating benzene in hydrocarbon oils |
(57) A process for selectively hydrogenating benzene in a hydrocarbon oil is disclosed.
The process comprises reacting the hydrocarbon oil with hydrogen gas in the presence
of a hydrogenation catalyst comprising at least one metal in Group VIII of the Periodic
Table and an alkaline aqueous layer which contains zinc or a zinc compound. Benzene
in hydrocarbon oils can be selectively converted into cyclohexane by the process,
while suppressing the hydrogenation reaction of alkyl aromatic compounds which are
important high octane materials for gasoline.